[Johnny Clasrk] IsNull IsNotNull True False Checks and Assertions (IDEA-35808)

java/java-tests/testData/inspection/dataFlow/fixture/AssertFalse.java

@@ -0,0 +1,9 @@
+public class AssertFalse {
+   void bar() {
+     final boolean b = call();
+     if (Assertions.assertFalse(b)) {
+       if(<warning descr="Condition 'b' is always 'false'">b</warning>) {}
+     }
+   }
+   boolean call() {return true;}
+}

java/java-tests/testData/inspection/dataFlow/fixture/AssertIsNotNull.java

@@ -0,0 +1,10 @@
+import java.lang.*;
+
+public class AssertIsNotNull {
+  void bar() {
+    final Object o = call();
+    Assertions.assertIsNotNull(o);
+    if(<warning descr="Condition 'o == null' is always 'false'">o == null</warning>) {}
+  }
+  Object call() {return new Object();}
+}

java/java-tests/testData/inspection/dataFlow/fixture/AssertIsNull.java

@@ -0,0 +1,10 @@
+import java.lang.*;
+
+public class AssertIsNull {
+   void bar() {
+     final Object o = call();
+     Assertions.assertIsNull(o);
+     if(<warning descr="Condition 'o == null' is always 'true'">o == null</warning>) {}
+   }
+   Object call() {return new Object();}
+}

java/java-tests/testData/inspection/dataFlow/fixture/AssertTrue.java

@@ -0,0 +1,9 @@
+public class AssertTrue {
+   void bar() {
+     final boolean b = call();
+     if (Assertions.assertTrue(b)) {
+       if(<warning descr="Condition 'b' is always 'true'">b</warning>) {}
+     }
+   }
+   boolean call() {return true;}
+}

java/java-tests/testData/inspection/dataFlow/fixture/IsNotNullCheck.java

@@ -0,0 +1,9 @@
+public class IsNotNullCheck {
+   void bar() {
+     final Value v = call();
+     if (Value.isNotNull(v)) {
+       if(<warning descr="Condition 'v == null' is always 'false'">v == null</warning>) {}
+     }
+   }
+    Value call() {return new Value();}
+}

java/java-tests/testData/inspection/dataFlow/fixture/IsNullCheck.java

@@ -0,0 +1,9 @@
+public class IsNullCheck {
+   void bar() {
+     final Value v = call();
+     if (Value.isNull(v)) {
+       if(<warning descr="Condition 'v == null' is always 'true'">v == null</warning>) {}
+     }
+   }
+    Value call() {return new Value();}
+}